Some trees don’t reflect color changes at all, while others do. I didn’t test all of them, but i know it at least affects the autumn oak as well, so it probably only affects trees with different variations.
I can’t say for certain on the bushes, I only found out about those while testing different plants before reporting the trees. Of course, I searched for the error before reporting it and saw other users talking about bush color problems long ago, but it seems to be a bug of different nature.
If you don’t mind me tacking on problems, though, there’s been a long outstanding issue with connecting guests clients seeing default colors on modified trees unless the host changes them again after a respective guest joins.